Card Catalogue Entry - W. Africa, Ogowe River, Mpongwe, BaFan. Godeffroy Mus. 293. 4 stringed instrument: a straight piece of reed of pithy nature, the surface split away to form the strings which are bridged up in the middle with a notched stick, and are tuned and prevented from tearing away at the ends by bands which can slide along the bar. In the centre is fixed a hemispherical gourd resonator.